Does this come with the usb plug or do you have to buy this

You need to purchase a commercially available USB cable that transmits power and data.

Does it have a power source

Battery powered out of box. Can be powered by usb. Search for "Roland usb power supply" and Myvolt provide an excellent power supply and cables for this.

Does this come with the USB plug or do you have to buy this?

You will need to purchase a commercially available MICRO USB to connect this product to a computer and charge without batteries.

Is this compatible with macos catalina 10.15.6?

Thank you for the question. Yes there is a TB-03 driver available for MacOS 10.15 Catalina, you can download this from the TB-03 product page on the Roland website in the drivers tab. Thank you.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Roland Tb-03 Boutique Bass Line Synthesizer

Product ID: 49166669

Details

Brand
ROLAND
Colour
white
Item dimensions L x W x H
13 x 30.8 x
Material
Metal
Model name
TB-03

🎧Built-in mini speaker + headphone jack

🔋Battery & USB powered for ultimate portability

🎛️Authentic TB-303 acid bass engine

¥198996

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Own the acid legacy — where vintage vibes meet modern mojo!

RELIABLE DATA BACKUP - Save your custom patterns and settings via USB to never lose your signature sound.
PORTABLE STUDIO POWER - Compact metal body with battery and USB power lets you jam anywhere, anytime.
PRO GRADE CONNECTIVITY - CV/Gate, MIDI, and USB outputs integrate seamlessly with vintage and modern gear.
ICONIC ACID HOUSE SOUND - Recreate the legendary TB-303 basslines that defined a generation.
INTUITIVE PATTERN PROGRAMMING - Simplified sequencer with a clear 4-digit LED screen for effortless creativity.

The Roland TB-03 Boutique Bass Line Synthesizer is a compact, metal-bodied instrument that authentically recreates the iconic TB-303 acid house sound. Featuring battery and USB power options, onboard effects like distortion and delay, and versatile connectivity including CV/Gate, MIDI, and USB, it’s designed for both studio precision and on-the-go creativity. With a simplified sequencer, built-in mini speaker, headphone jack, and USB data backup, the TB-03 blends vintage character with modern convenience for professional musicians and producers.

Specifications

ASIN	B01LJGT0PO
Best Sellers Rank	23,765 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 54 in Tabletop Synthesizers
Body Material	Metal
Brand Name	ROLAND
Colour	white
Connector Type	USB
Customer Reviews	4.4 4.4 out of 5 stars (96)
Finish Type	Unfinished
Global Trade Identification Number	04957054509484
Included Components	Bass Bass Drum
Is the Product Left or Right Handed?	USB
Item Dimensions	13 x 30.8 x 5.2 centimetres
Item Type Name	Roland TB-03 Boutique Bass Line Synthesizer
Item Weight	0.69 Kilograms
Manufacturer	Roland
Material	Metal
Model Name	TB-03
Model Number	TB-03
Number of Items	1
Number of Packs	1
Part Number	TB-03
Product Warranty	12 months.
Sound Profile	acid house
UPC	761294509487
Unit Count	1 Count

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TrustScore 4.5 | 7,300+ reviews

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